IGNITION
ignition, firing, lighting, kindling, inflammation
(noun) the act of setting something on fire
ignition, ignition system
(noun) the mechanism that ignites the fuel in an internal-combustion engine
ignition
(noun) the process of initiating combustion or catching fire
Source: WordNet® 3.1
Etymology
Noun
ignition (countable and uncountable, plural ignitions)
The act of igniting.
The initiation of combustion.
A system for activating combustion in a combustion engine.
Receptacle for a key used to start the engine in a vehicle.
Source: Wiktionary
Ig*ni"tion, n. Etym: [Cf. F. ignition.]
1. The act of igniting, kindling, or setting on fire.
2. The state of being ignited or kindled. Sir T. Browne.
Source: Webster’s Unabridged Dictionary 1913 Edition